<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8" />
    <title>Title</title>
</head>
<body>
<p><label th:text="#{welcome}"></label></p>
<a th:href="@{/changeSessionLanauage?lang=zh}">中文</a>
<a th:href="@{/changeSessionLanauage?lang=en}">英文</a>
</body>
</html>